用遗传算法实现0-1背问题报告

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ResearchofanaerobicbiofilterprobleminoperationofPTAwastewatertreatmentChengXuehang1,ZhangZhenjia1,ZhouWeili1,ZhuYi2,XuZhaoli2(1.SchoolofEnvironmentalScienceandEngineering,ShanghaiJiaotongUniversity,Shanghai200240,China;2.SINOPECYizhengChemicalFiberCo.,Ltd.,Yizheng211900,China)PTA1,1,1,2,2(1.,200240;2.,211900)[](PTA)AF,AF78.9%,AF、,AF、。,AF,。。[];;;[]TQ085+.411[]A[]1005-829X(2008)11-0080-03Abstract:TheresultofLiCltraceexperimentofanaerobicbiofilter(AF)forPTAwastewatertreatmentinYizhengChemicalFiberCo.showsthattheratioofdeadzoneofAFwasashighas78.9%.FortheAFcarriedthroughintheglucose-consumingactivityandaceticacid-consumingactivitytestsofanaerobicsludgeatdifferentheight,itisfoundthatlowbioactivityandbiochaosexistintheinnersludgeofAF.SEMoftheanaerobicsludgeshowsthatatthebottompartofAFtherearelimitednumberofbacteria,butatthehigherpartofAFtherearefilamentousbacteria.Aimingatthese,analysisandsuggestionaregiven.Keywords:purifiedterephthalicacidwastewater;anaerobicbiofilter;flowpatternexperiment;bioactivityexperiment45t/a(PTA),PTA(AF)。,,COD85%,,AF,20079,AFCOD55%。,AF,、,COD,PTA。11.1AFLiCl,,,Li+。。1.2Li+《》。1.31。T2100/min11—125mL;2—12811200811IndustrialWaterTreatmentVol.28No.11Dec.,200880AF9m,AF7。,,7。VSS。1.4-,VFA,SSVSS〔1〕。22.1,O.Levenspiel〔2〕,(2),C(C=Ct/C0,C0)θ(θ=t/t,t),2。,(1)(2)tVd。t=n-1i=1Σ(ti+1+ti)(Ci+1+Ci)(ti+1-ti)2n-1i=1Σ(Ci+1+Ci)(ti+1-ti)(1)Vd=(1-t/HRT)×100%(2):ti———i;ti+1———i+1;Ci———iLi+;Ci+1———i+1Li+。2,,,。,16.4h,78.9%。,。:PTACo、Mn,,,CO32-CoCO3MnCO32。,,。,1/2,,,。2.2,COD,3、4。3,(COD)0.04mg/(mg·h)。W.Zhou〔3〕,,(COD)0.5mg/(mg·h),0.05mg/(mg·h)。AF、。,,、、。AF、,4.54.03.53.02.52.01.51.00.500.51.01.52.02.53.0θC278hC-θ0.040.030.020.0100.50.81.11.42.24.26.2/m3(COD)/(mg·mg-1·h-1)0.0050.0040.0030.0020.00100.50.81.11.42.24.26.2/m(COD)/(mg·mg-1·h-1)4,:PTA2008-11,28(11)81、。4,(COD)0.005mg/(mg·h),W.Zhou〔3〕,0.02mg/(mg·h),,。,0.5m,4.2m。AF,。5、6。5,0.8m,,。5。6,6.2m,。,,,,,,——。,,,,。32,AFAF,。。,,,,。AF。,AF,AF,,。,,1/4~1/3,,J.C.Young〔4〕,AFCOD0.3m,。[][1].[M].:,1998:509-557.[2]LevenspielO.Chemicalreactionengineering[M].NewYork:JohnWiley,1974:263-265.[3]ZhouW,ImaiT,UkitaM,etal.EffectofloadingrateonthegranulationprocessandgranularactivityinabenchscaleUASBreactor[J].BioresourceTechnology,2007,98(7):1386-1392.[4]YoungJC,DahabMF.Effectofmediadesignontheperformanceoffixed-bedanaerobicreactors[J].Wat.Sci.Technol.,1983,15(8-9):369.5AF0.8m6AF6.2m[](1984—),。:021-54745003,E-mail:chengxue-hang@sjtu.edu.cn。[]2008-07-30()2008-11,28(11)《》200982

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